The perimeter of a rectangle is 6x2 - 6x - 4. The width of the rectangle is 2x + 1. What is the length of the rectangle?

Question

﻿The perimeter of a rectangle is 6x2 - 6x - 4. The width of the rectangle is 2x + 1. What is the length of the rectangle?

Patrick B. · Accepted Answer

P = 2*L + 2*w6x^2 - 6x - 4 = 2 * L + 2( 2x+1)6x^2 - 6x - 4 = 2*L + 4x + 26x^2 - 6x - 4 - 4x - 2 = 2L6x^2 - 10x - 6 = 2L3x^2 - 5x - 3 = L

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